David L. Roberts

Dr. David L. Roberts

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Research Focus & Metrics

Academic Career Length

19Years (2008-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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13 February 2015 in Autonomous Agents and Multi-Agent Systems
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Journal Article
Closed access
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RLRobert Loftin
Robert Loftin
BPBei Peng
Bei Peng
JMJames MacGlashan
James MacGlashan
MLMichael L. Littman
Michael L. Littman
Matthew TaylorMatthew Taylor
Matthew Taylor
DRDavid L. Roberts
David L. Roberts

1 January 2008 in European Journal of Combinatorics
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Journal Article
Closed access
DRDavid L. Roberts
David L. Roberts
FRFred S. Roberts
Fred S. Roberts

1 August 2012
Verified
Conference Paper
Closed access
RBRita Brugarolas
Rita Brugarolas
DRDavid L. Roberts
David L. Roberts
BSBarbara Sherman
Barbara Sherman
ABAlper Bozkurt
Alper Bozkurt
Dogs and humans have worked in partnership throughout history thanks to dogs' unique capability of detecting signals in human voices or gestures and learning from human inputs. Traditional canine training methods rely solely on subjective visual observations made by trainers. We propose a canine body-area-network (cBAN) to incorporate context-aware sensing with objective detection algorithms to augment the sensitivity and specificity of human trainer's awareness of the dogs they are training. As an initial effort, we developed a Bluetooth-based wireless infrastructure and tested inertial measurement units as cBAN sensor nodes to electronically assess the posture of the dogs. As a result, we were able to optimize the sensor locations and distinguish different postures using the distinct patterns in the measured angles.

23 November 2018 in IEEE Sensors Journal
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Journal Article
Closed access
RBRita Brugarolas
Rita Brugarolas
SYSherrie Yuschak
Sherrie Yuschak
DADarcy Adin
Darcy Adin
DRDavid L. Roberts
David L. Roberts
BSBarbara L. Sherman
Barbara L. Sherman
ABAlper Bozkurt
Alper Bozkurt

4 April 2017 in Foundations and Trends® in Human-Computer Interaction
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Journal Article
Closed access
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LFLarry Freil
Larry Freil
CBCeara Byrne
Ceara Byrne
GVGiancarlo Valentin
Giancarlo Valentin
CZClint Zeagler
Clint Zeagler
DRDavid L. Roberts
David L. Roberts
MJMelody Jackson
Melody Jackson
Canines and humans have lived together for many thousands of years, to our mutual benefit. In addition to providing companionship, dogs can perform critical roles, such as assisting humans with medical concerns, searching for lost individuals, and detecting substances by scent. Researching how technology might be designed for canines has the potential to significantly improve the lives of both dogs and humans. We draw upon the extensive foundations and literature in human-centered computing to identify and adapt models and methods that are relevant for canines. Our work surveys the landscape of canine-centered computing and canine psychophysics, and generates a framework and set of guidelines to help inform the requirements, design, and evaluation of systems for canines. Our principal aim is to invite and challenge human computer interaction (HCI) researchers to contribute to the field of canine-centered computing, and we conclude with a call to action in this promising nascent field.

21 June 2014 in Proceedings of the AAAI Conference on Artificial Intelligence
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Journal Article
Open access
PDF file
RLRobert Loftin
Robert Loftin
JMJames MacGlashan
James MacGlashan
BPBei Peng
Bei Peng
Matthew TaylorMatthew Taylor
Matthew Taylor
MLMichael Littman
Michael Littman
DRDavid L. Roberts
David L. Roberts
This paper introduces two novel algorithms for learning behaviors from human-provided rewards. The primary novelty of these algorithms is that instead of treating the feedback as a numeric reward signal, they interpret feedback as a form of discrete communication that depends on both the behavior the trainer is trying to teach and the teaching strategy used by the trainer. For example, some human trainers use a lack of feedback to indicate whether actions are correct or incorrect, and interpreting this lack of feedback accurately can significantly improve learning speed. Results from user studies show that humans use a variety of training strategies in practice and both algorithms can learn a contextual bandit task faster than algorithms that treat the feedback as numeric. Simulated trainers are also employed to evaluate the algorithms in both contextual bandit and sequential decision-making tasks with similar results.